Home / 5,784.42-7,982.49-3,131.83

Finding the Fourth Proportional to 5,784.42, 7,982.49 and 3,131.83

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Solution

The fourth proportional to 5,784.42, 7,982.49 and 3,131.83 is: 4,321.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,784.42 : 7,982.49 = 3,131.83 : x
  2. Step 2: Convert to fraction form
    5,784.42/7,982.49 = 3,131.83/x
  3. Step 3: Cross multiply
    5,784.42x = 7,982.49 × 3,131.83
  4. Step 4: Simplify right side
    5,784.42x = 24,999,801.66
  5. Step 5: Solve for x
    x = 24,999,801.66/5,784.42
  6. Step 6: Final answer
    x = 4,321.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.